Google started publishing Android version distribution charts for various platforms in 2010 on their Android developer page. Now Apple has followed them and published their iOS distribution Pie chart similar to Google. Apple announced at the WWDC 2013 earlier this month that 93% of App Store customers are using the latest iOS 6. Now the distribution numbers are up on the Apple Developer website. The chart shows that 6% of customers using iOS 5 and just 1% are still stuck with versions older than iOS 5.
It is not a surprise that most of the Apple users are using the latest version of the users. Google releases the latest version of the OS for the Nexus users immediately, but the smartphone manufacturers has to release their optimized version of the OS once the stock version is provided to them, hence only 33% of the users are using Jelly Bean, among those just 4% are on Android 4.2.
Google changed the Android distribution tracking method starting from April. It is now collecting data based on user visits the Google Play Store, instead collecting distribution stats when a user checks-in to Google servers. Apple follows the same method that collects data when users visits the iTunes App Store on the iOS devices. It also follows the same 14-day period for data collection like Google.
Source: Apple Developer | Via: Apple Insider